Game Developers Conference 2013 organizers have announced the recent addition of two talks from Valve that discuss porting Team Fortress 2 to VR goggles - plus research and development challenges for head-mounted displays and tracking systems.

These talks are part of the Programming and Design tracks of the GDC main conference that will take place March 27-29 at the Moscone Center in San Francisco, CA.

These efforts have included "what stereo support entails, rendering 2D user interface in a 90 degree field of view display, dealing with view models and other rendering shortcuts, and how mouselook can interact with head tracking in a first person shooter." Ludwig will also share ideas on how a game specifically designed for virtual reality could avoid many of the issues that Valve faced when porting Team Fortress 2.

The talk will include "technical content involving head-mounted display hardware and its interaction with the human perceptual system," with Abrash examining one real world discrepancy to which human perception is sensitive. Those curious about the possibility of a platform shift to virtual and/or augmented reality are encouraged to attend.